Romney books first general election TV ads

Mitt Romney's campaign is about to go up with its first television ads of the general election, multiple sources say.

A GOP source confirms Romney has booked airtime in Ohio, Iowa, Virginia and North Carolina for May 18-22.

Romney indicated today that his first ads would be positive. His campaign has not run ads in more than a month, and while the super PAC Restore Our Future has done positive advertising on Romney's behalf, these spots will be a first look at how Romney hopes to introduce himself in the newest phase of the campaign.

UPDATE: A second source confirms the duration of the buy and targeted states, and offers a little more detail on the geography. According to this source, the buy is about 650 to 850 GRPs in each of the following markets: Columbus, Cleveland, Cincinnati and Dayton in Ohio; Norfolk, Richmond and Roanoke in Virginia; Des Moines, Cedar Rapids, Quad Cities and Sioux City in Iowa; and Raleigh, Charlotte and Greensboro in North Carolina.